Broke network in ProxMox

[liamwestcoast]

Hey guys, so I'm dealing with a pretty frustrating problem and have decided to come here as a last resort for help.

I'm running ProxMox VE 3.4 on Debian, and was originally trying to set up networking in a VM. After making changes to /etc/network/interfaces on the host server, I had to reboot the host to make the changes go into effect. When the host was brought back up, it didn't have any connectivity. At this point, I'm just trying to restore connectivity to the host.

My /etc/network/interfaces file on the host is:

# network interface settings
auto lo
iface lo inet loopback

iface eth0 inet loopback

iface eth0 inet static
address 192.254.71.218
netmask 255.255.255.248
gateway 192.254.71.217
broadcast 192.254.71.223
network 192.254.71.216
dns-nameservers 199.255.156.3
dns-search cyrus.sx

The issue isn't with DNS because I can't even ping IP addresses. Is there a way to just like rebuild the interfaces file or something? I've been Googling for hours.

I'd really appreciate any help. Thank you.

 

[liamwestcoast]

I ended up getting connectivity back on main host by using a sample interfaces file and updating it with my network info accordingly. Now to just figure out how to get a VM to connect without breaking it again!

 

[NStorm]

https://pve.proxmox.com/wiki/Network_Model

 

[pirateghost]

You should not have the IP on the eth device but on the vmbr0